首页|Efficient reduction of organic pollutants and H2 generation using bimetallic nanoparticles coated alginate hydrogel beads
Efficient reduction of organic pollutants and H2 generation using bimetallic nanoparticles coated alginate hydrogel beads
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NSTL
Here,a simple method is used for the preparation of calcium alginate-activated carbon composite beads(Alg-ACBDs).These beads were introduced into different metal salt solutions for decoration with single metal nanoparticle(M°)and double metal nanoparticles(M~0-M~0).The prepared M~0/Alg-ACBDs catalysts,such as,Cu~0/Alg-ACBDs,Ag°/Alg-ACBDs,Fe~0/Alg-ACBDs,Cu~0-Ag~0/Alg-ACBDs,and Fe~0-Cu~0/Alg-ACBDs were evaluated against NaBH4 methanolysis.In addition,different surfactants,such as,brij-56,pluronic F-127,and urea(Co(NH2)2),different amount of NaBH4,catalyst,and temperature effect was also investigated for higher H2 generation from NaBH4 methanolysis.Similarly,the synthesized catalysts were used for the reduction of different nitrophenols(NPs)and dyes.The Fe°-Cu°/Alg-ACBDs catalyst efficiently catalyzed the reduction reaction of 4-NP and methyl orange(MO)and both were studied in detail.The corresponding reduction rate of 4-NP and MO was observed as 1.829 and 1.163 min-1,respectively.Moreover,the recyclability of the catalyst was investigated for 4-NP and H2 generation,where no decrease in the reduction percentage of 4-NP was recorded,while reduction in their catalytic rates was observed.
NSTL
